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Mini Shell
Mini Shell
# This file is part of cloud-init. See LICENSE file for license information.
import calendar
import sys
from datetime import datetime
from cloudinit import subp, util
stage_to_description = {
"finished": "finished running cloud-init",
"init-local": "starting search for local datasources",
"init-network": "searching for network datasources",
"init": "searching for network datasources",
"modules-config": "running config modules",
"modules-final": "finalizing modules",
"modules": "running modules for",
"single": "running single module ",
}
# logger's asctime format
CLOUD_INIT_ASCTIME_FMT = "%Y-%m-%d %H:%M:%S,%f"
# journctl -o short-precise
CLOUD_INIT_JOURNALCTL_FMT = "%b %d %H:%M:%S.%f %Y"
# other
DEFAULT_FMT = "%b %d %H:%M:%S %Y"
def parse_timestamp(timestampstr):
# default syslog time does not include the current year
months = [calendar.month_abbr[m] for m in range(1, 13)]
if timestampstr.split()[0] in months:
# Aug 29 22:55:26
FMT = DEFAULT_FMT
if "." in timestampstr:
FMT = CLOUD_INIT_JOURNALCTL_FMT
dt = datetime.strptime(
timestampstr + " " + str(datetime.now().year), FMT
)
timestamp = dt.strftime("%s.%f")
elif "," in timestampstr:
# 2016-09-12 14:39:20,839
dt = datetime.strptime(timestampstr, CLOUD_INIT_ASCTIME_FMT)
timestamp = dt.strftime("%s.%f")
else:
# allow date(1) to handle other formats we don't expect
timestamp = parse_timestamp_from_date(timestampstr)
return float(timestamp)
def parse_timestamp_from_date(timestampstr):
out, _ = subp.subp(["date", "+%s.%3N", "-d", timestampstr])
timestamp = out.strip()
return float(timestamp)
def parse_ci_logline(line):
# Stage Starts:
# Cloud-init v. 0.7.7 running 'init-local' at \
# Fri, 02 Sep 2016 19:28:07 +0000. Up 1.0 seconds.
# Cloud-init v. 0.7.7 running 'init' at \
# Fri, 02 Sep 2016 19:28:08 +0000. Up 2.0 seconds.
# Cloud-init v. 0.7.7 finished at
# Aug 29 22:55:26 test1 [CLOUDINIT] handlers.py[DEBUG]: \
# finish: modules-final: SUCCESS: running modules for final
# 2016-08-30T21:53:25.972325+00:00 y1 [CLOUDINIT] handlers.py[DEBUG]: \
# finish: modules-final: SUCCESS: running modules for final
#
# Nov 03 06:51:06.074410 x2 cloud-init[106]: [CLOUDINIT] util.py[DEBUG]: \
# Cloud-init v. 0.7.8 running 'init-local' at \
# Thu, 03 Nov 2016 06:51:06 +0000. Up 1.0 seconds.
#
# 2017-05-22 18:02:01,088 - util.py[DEBUG]: Cloud-init v. 0.7.9 running \
# 'init-local' at Mon, 22 May 2017 18:02:01 +0000. Up 2.0 seconds.
#
# Apr 30 19:39:11 cloud-init[2673]: handlers.py[DEBUG]: start: \
# init-local/check-cache: attempting to read from cache [check]
amazon_linux_2_sep = " cloud-init["
separators = [" - ", " [CLOUDINIT] ", amazon_linux_2_sep]
found = False
for sep in separators:
if sep in line:
found = True
break
if not found:
return None
(timehost, eventstr) = line.split(sep)
# journalctl -o short-precise
if timehost.endswith(":"):
timehost = " ".join(timehost.split()[0:-1])
if "," in timehost:
timestampstr, extra = timehost.split(",")
timestampstr += ",%s" % extra.split()[0]
if " " in extra:
hostname = extra.split()[-1]
else:
hostname = timehost.split()[-1]
if sep == amazon_linux_2_sep:
# This is an Amazon Linux style line, with no hostname and a PID.
# Use the whole of timehost as timestampstr, and strip off the PID
# from the start of eventstr.
timestampstr = timehost.strip()
eventstr = eventstr.split(maxsplit=1)[1]
else:
timestampstr = timehost.split(hostname)[0].strip()
if "Cloud-init v." in eventstr:
event_type = "start"
if "running" in eventstr:
stage_and_timestamp = eventstr.split("running")[1].lstrip()
event_name, _ = stage_and_timestamp.split(" at ")
event_name = event_name.replace("'", "").replace(":", "-")
if event_name == "init":
event_name = "init-network"
else:
# don't generate a start for the 'finished at' banner
return None
event_description = stage_to_description[event_name]
else:
(_pymodloglvl, event_type, event_name) = eventstr.split()[0:3]
event_description = eventstr.split(event_name)[1].strip()
event = {
"name": event_name.rstrip(":"),
"description": event_description,
"timestamp": parse_timestamp(timestampstr),
"origin": "cloudinit",
"event_type": event_type.rstrip(":"),
}
if event["event_type"] == "finish":
result = event_description.split(":")[0]
desc = event_description.split(result)[1].lstrip(":").strip()
event["result"] = result
event["description"] = desc.strip()
return event
def dump_events(cisource=None, rawdata=None):
events = []
event = None
CI_EVENT_MATCHES = ["start:", "finish:", "Cloud-init v."]
if not any([cisource, rawdata]):
raise ValueError("Either cisource or rawdata parameters are required")
if rawdata:
data = rawdata.splitlines()
else:
data = cisource.readlines()
for line in data:
for match in CI_EVENT_MATCHES:
if match in line:
try:
event = parse_ci_logline(line)
except ValueError:
sys.stderr.write("Skipping invalid entry\n")
if event:
events.append(event)
return events, data
def main():
if len(sys.argv) > 1:
cisource = open(sys.argv[1])
else:
cisource = sys.stdin
return util.json_dumps(dump_events(cisource))
if __name__ == "__main__":
print(main())
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